// Copyright 2013 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_COMPILER_OPERATOR_PROPERTIES_H_
#define V8_COMPILER_OPERATOR_PROPERTIES_H_

#include "src/base/macros.h"
#include "src/globals.h"

namespace v8 {
namespace internal {
    namespace compiler {

        // Forward declarations.
        class Operator;

        class V8_EXPORT_PRIVATE OperatorProperties final {
        public:
            static bool HasContextInput(const Operator* op);
            static int GetContextInputCount(const Operator* op)
            {
                return HasContextInput(op) ? 1 : 0;
            }

            static bool NeedsExactContext(const Operator* op);

            static bool HasFrameStateInput(const Operator* op);
            static int GetFrameStateInputCount(const Operator* op)
            {
                return HasFrameStateInput(op) ? 1 : 0;
            }

            static int GetTotalInputCount(const Operator* op);

            static bool IsBasicBlockBegin(const Operator* op);

        private:
            DISALLOW_COPY_AND_ASSIGN(OperatorProperties);
        };

    } // namespace compiler
} // namespace internal
} // namespace v8

#endif // V8_COMPILER_OPERATOR_PROPERTIES_H_
